Dura Plastics - 15" X 21" Jumbo Valve Box

Dura's 15" x 21" rectangular valve box is engineered to protect in-ground irrigation valves in residential, commercial, and light-duty turf applications. With durable construction and a tight-sealing green lid, it keeps internal components safe from the elements while maintaining accessibility for maintenance.

Key Features:

• Ideal for protecting irrigation valves in turf and landscape settings
• Made from durable, high-strength plastic designed for long-term use
• Includes green lid; closes flush to protect contents from debris
• Light-duty pedestrian-rated with SCTE vertical load compliance
• Made in the USA

Construction & Durability:

• Constructed from chemically resistant, high-density plastic
• Withstands static vertical loads for pedestrian traffic areas
• Corrosion-resistant and UV-resistant materials ensure long outdoor life
• Body includes sidewall ridges for added strength and support

Performance & Functionality:

• Provides reliable valve protection and debris shielding
• Minimizes maintenance needs with sealed, secure lid design
• Helps prevent water intrusion and damage to critical system components

Ease of Installation & Use:

• Pre-molded access and knockout slots simplify pipe configuration
• Quick installation – no tools required to secure lid
• 12" deep body provides ample room for valve assemblies

Technical Specifications:

• Dimensions: 15" x 21" (Top); 12" Depth
• Color: Black body with green lid
• Static Vertical Load Rating: SCTE Light Duty – Pedestrian
• Tensile Strength: 2,700–4,400 PSI
• Flexural Modulus: Min. 140,000 – Max. 240,000 PSI
• Notched Izod Impact Strength: 0.5–3.0
• Deflection Temp @ 66 PSI: 150–200°F
• Density: 0.950–0.965
• Electrical Dielectric Strength: 400–600 V/mil
• Water Absorption: Less than 1%
• Chemical Resistance: Yes

Installation & Application:

• Recommended for residential, commercial, and municipal irrigation systems
• Installation method: Buried in-ground
• Best used in non-vehicular traffic areas

Compatibility & Optional Accessories:

• Compatible with Dura valve box extensions and lids
• Optional add-ons: locking lids, ID tags, and knockouts for additional pipe routing